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Ronny Ervik
Polypropylene for Rotational Moulding
UltraPolymers PP for Rotational Moulding
Many customer has been sampled Many difficult moulds have been trailed Only positive feedback on processing and impact strength
• very good mould fillings
• easy processing – close to polyethylene
• No / low amount of pinholes
• good impact strength at low temperatures
PolyPropylene – general charachteristics
Polypropylene characteristics compared to polyethylene
• Higher stiffness
• High service temperature
• Excellent ESCR
• Higher hardness / better abrasion and scratch resistance
* * * * * * * *n
* * * * * * * *
H2C=CH
CH3
+ H2C=CH
CH3
Polypropylene for the rotomoulding industry
1. In order to expand into new markets, the rotational moulding industry needs materials
offering:
• higher stiffness
• higher surface hardness
• high temperature stability
TOUGHNESS is major requirement for rotomoulded products
Polyethylene fulfill the toughness requirements very well
Polypropylene should come close to this performance and give the extras typical for PP
PP vs PE – impact strength
PP vs PE - temperature
PP-B
0°C
20°C
40°C
60°C
80°C
100°C
120°C
Conventional PE
PP-H
Lupolen®
PP-R
PP vs PE - morphology
Very slow crystallinisation
Very big crystals
Very high stiffness
More brittle
Very fast crystallinisation
Very fine crystals
Moderate stiffness
Better impact
UP301PP and UP321PP
Recipees developed in-house with a lot of tests
Many different recipees evaluated
Current recipees are based on
-tough, easy flow PP
-tailored impact modifier
-high level additive package
-pure, good distributed carbon black
Compounded at Ravago
Cryogenically ground
PP properties UP301PP
Physical Properties Test Method Typical Value Unit
Melt flow index 230 oC/2,16 kg ASTM D1238 14 g/10 min
Density ISO 1133 900 Kg/m3
ESCR 50 oC / 10% Igepal ASTM D1693 >1000h h
Flexural Modulus ISO 178 800 MPa
Izod notched 23 oC ISO180 No Break kJ/m2
Impact Strength F50, 23 oC ARM method 70 J
Impact Strength F50, 0 oC ARM method 15 J
Vicat ASTM D1525 119 oC
PP properties UP321PP
Physical Properties Test Method Typical Value Unit
Melt flow index 230 oC/2,16 kg ASTM D1238 15 g/10 min
Density ISO 1133 900 Kg/m3
ESCR 50 oC / 10% Igepal ASTM D1693 >1000h h
Flexural Modulus ISO 178 1000 MPa
Izod notched 23 oC ISO180 22 kJ/m2
Impact Strength F50, 23 oC ARM method 55 J
Impact Strength F50, 0 oC ARM method 10 J
Vicat ASTM D1525 122 oC
Processing – initial tests
0
60
120
180
240
300
0 8 16 24 32 40
Te
mp
era
ture
[ºC
]
Time [min]
Oven temp: 250 C PIAT UP301PP (nat): 205 C PIAT UP321PP (black): 230 C
Microscopy evaluation – first samples
PP applications
1. High temperature applications
2. Parts requiring autoclaving / sterilization
3. Medical bio-technology
4. Housings of appliances
5. Automotive
6. Pipe system parts
7. Furniture
8. Solar hot water systems
PP for furniture
PP for furniture
Datasheets are available
Version 1 – 2012
Ultrapolymers Group NV Gerard Mercatorstraat 90, 3920 Lommel Tel: +32(0)11 63 45 96 www.ultrapolymers.com [email protected]
D
atas
hee
t
Ultrapolymers PP
UP301PP Natural Polypropylene for Rotational Moulding
Description
Ultrapolymers UP301PP natural powder is designed for high impact rotational moulding applications and is
suitable for applications requiring high ESCR, low warpage and good processability. Ultrapolymers UP301PP is
fully heat and UV stabilised resulting in in good processing latitude, good colour retention and long life
expectancy.
Melt flow index 230 oC/2,16 kg ASTM D1238 14,0 g/10 min
Density ISO 1133 900 Kg/m3
ESCR 50 oC / 10% Igepal ASTM D1693 TBA h
Flexural Modulus ISO 178 800 MPa
Izod notched 23 oC ISO180 No Break kJ/m
2
Impact Strength F50, 23 oC ARM method 50 J
Impact Strength F50, 0 oC ARM method 24 J
Vicat ASTM D1525 119 oC
*Values expressed are from base material
Product Characteristics
Medium stiffness and high impact strength
High ESCR
Good processability
Typical Applications
Furniture
Automotive
Hydraulic oil tanks
Colours
Also available in Black and Compounded Colours
"Before using an Ultrapolymers product, customers and other users should make their own independent determination that the product is suitable for the intended use. They should also ensure that they can use the Ultrapolymers product safely and legally. Neither does the data, contained in this publication, imply any guarantee, express
or implied, of certain properties, nor the suitability of the product for a specific purpose. It is the responsibility of the recipient of our products to ensure that any
proprietary rights and existing laws and legislation are observed." * The indicated values are typical values and should no be used for specification work.
Physical Properties Test Method Typical Value* Unit
Version 1 – 2012
Ultrapolymers Group NV Gerard Mercatorstraat 90, 3920 Lommel Tel: +32(0)11 63 45 96 www.ultrapolymers.com [email protected]
D
atas
hee
t
Ultrapolymers PP
UP321PP Black Polypropylene for Rotational Moulding
Description
Ultrapolymers UP321PP black powder is designed for stiff rotational moulding applications and is suitable for
applications requiring high ESCR, low warpage and good processability. Ultrapolymers UP321PP is fully heat and
UV stabilised resulting in in good processing latitude, good colour retention and long life expectancy.
Melt flow index 230 oC/2,16 kg ASTM D1238 15,0 g/10 min
Density ISO 1133 900 Kg/m3
ESCR 50 oC / 10% Igepal ASTM D1693 TBA h
Flexural Modulus ISO 178 1000 MPa
Izod notched 23 oC ISO180 22 kJ/m
2
Impact Strength F50, 23 oC ARM method TBA J
Impact Strength F50, 0 oC ARM method TBA J
Vicat ASTM D1525 122 oC
*Values expressed are from base material
Product Characteristics
Medium stiffness and high impact strength
High ESCR
Good processability
Typical Applications
Furniture
Automotive
Hydraulic oil tanks
Colours
Available in Black and Compounded Colours
"Before using an Ultrapolymers product, customers and other users should make their own independent determination that the product is suitable for the intended use.
They should also ensure that they can use the Ultrapolymers product safely and legally. Neither does the data, contained in this publication, imply any guarantee, express
or implied, of certain properties, nor the suitability of the product for a specific purpose. It is the responsibility of the recipient of our products to ensure that any
proprietary rights and existing laws and legislation are observed." * The indicated values are typical values and should no be used for specification work.
Physical Properties Test Method Typical Value* Unit
